Add Prusa i3 Mk2 definition
Add Prusa i3 Mk2 definition

Curahelper/Cura,hmflash/Cura,ynotstartups/Wanhao,hmflash/Cura,fieldOfView/Cura,fieldOfView/Cura,senttech/Cura,totalretribution/Cura,totalretribution/Cura,ynotstartups/Wanhao,Curahelper/Cura,senttech/Cura